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Maniack Crudelis
GitHub
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@ -2,553 +2,6 @@
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# =============================================================================
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# YUNOHOST 2.6 FORTHCOMING HELPERS
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# (will be part of YunoHost 2.6, so won't be necessary any more after
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# YunoHost 2.6 gets widespread)
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# =============================================================================
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# Normalize the url path syntax
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# Handle the slash at the beginning of path and its absence at ending
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# Return a normalized url path
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#
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# example: url_path=$(ynh_normalize_url_path $url_path)
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# ynh_normalize_url_path example -> /example
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# ynh_normalize_url_path /example -> /example
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# ynh_normalize_url_path /example/ -> /example
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# ynh_normalize_url_path / -> /
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#
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# usage: ynh_normalize_url_path path_to_normalize
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# | arg: url_path_to_normalize - URL path to normalize before using it
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ynh_normalize_url_path () {
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path_url=$1
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test -n "$path_url" || ynh_die "ynh_normalize_url_path expect a URL path as first argument and received nothing."
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if [ "${path_url:0:1}" != "/" ]; then # If the first character is not a /
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path_url="/$path_url" # Add / at begin of path variable
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fi
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if [ "${path_url:${#path_url}-1}" == "/" ] && [ ${#path_url} -gt 1 ]; then # If the last character is a / and that not the only character.
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path_url="${path_url:0:${#path_url}-1}" # Delete the last character
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fi
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echo $path_url
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}
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# Check if a mysql user exists
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#
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# usage: ynh_mysql_user_exists user
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# | arg: user - the user for which to check existence
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function ynh_mysql_user_exists()
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{
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local user=$1
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if [[ -z $(ynh_mysql_execute_as_root "SELECT User from mysql.user WHERE User = '$user';") ]]
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then
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return 1
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else
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return 0
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fi
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}
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# Create a database, an user and its password. Then store the password in the app's config
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#
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# After executing this helper, the password of the created database will be available in $db_pwd
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# It will also be stored as "mysqlpwd" into the app settings.
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#
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# usage: ynh_mysql_setup_db user name [pwd]
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# | arg: user - Owner of the database
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# | arg: name - Name of the database
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# | arg: pwd - Password of the database. If not given, a password will be generated
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ynh_mysql_setup_db () {
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local db_user="$1"
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local db_name="$2"
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db_pwd=$(ynh_string_random) # Generate a random password
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ynh_mysql_create_db "$db_name" "$db_user" "$db_pwd" # Create the database
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ynh_app_setting_set $app mysqlpwd $db_pwd # Store the password in the app's config
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}
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# Remove a database if it exists, and the associated user
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#
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# usage: ynh_mysql_remove_db user name
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# | arg: user - Owner of the database
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# | arg: name - Name of the database
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ynh_mysql_remove_db () {
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local db_user="$1"
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local db_name="$2"
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local mysql_root_password=$(sudo cat $MYSQL_ROOT_PWD_FILE)
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if mysqlshow -u root -p$mysql_root_password | grep -q "^| $db_name"; then # Check if the database exists
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echo "Removing database $db_name" >&2
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ynh_mysql_drop_db $db_name # Remove the database
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else
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echo "Database $db_name not found" >&2
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fi
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# Remove mysql user if it exists
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if $(ynh_mysql_user_exists $db_user); then
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ynh_mysql_drop_user $db_user
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fi
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}
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# Correct the name given in argument for mariadb
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#
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# Avoid invalid name for your database
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#
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# Exemple: dbname=$(ynh_make_valid_dbid $app)
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#
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# usage: ynh_make_valid_dbid name
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# | arg: name - name to correct
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# | ret: the corrected name
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ynh_sanitize_dbid () {
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dbid=${1//[-.]/_} # We should avoid having - and . in the name of databases. They are replaced by _
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echo $dbid
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}
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# Manage a fail of the script
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#
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# Print a warning to inform that the script was failed
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# Execute the ynh_clean_setup function if used in the app script
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#
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# usage of ynh_clean_setup function
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# This function provide a way to clean some residual of installation that not managed by remove script.
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# To use it, simply add in your script:
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# ynh_clean_setup () {
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# instructions...
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# }
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# This function is optionnal.
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#
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# Usage: ynh_exit_properly is used only by the helper ynh_abort_if_errors.
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# You must not use it directly.
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ynh_exit_properly () {
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exit_code=$?
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if [ "$exit_code" -eq 0 ]; then
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exit 0 # Exit without error if the script ended correctly
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fi
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trap '' EXIT # Ignore new exit signals
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set +eu # Do not exit anymore if a command fail or if a variable is empty
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echo -e "!!\n $app's script has encountered an error. Its execution was cancelled.\n!!" >&2
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if type -t ynh_clean_setup > /dev/null; then # Check if the function exist in the app script.
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ynh_clean_setup # Call the function to do specific cleaning for the app.
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fi
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ynh_die # Exit with error status
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}
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# Exit if an error occurs during the execution of the script.
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#
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# Stop immediatly the execution if an error occured or if a empty variable is used.
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# The execution of the script is derivate to ynh_exit_properly function before exit.
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#
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# Usage: ynh_abort_if_errors
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ynh_abort_if_errors () {
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set -eu # Exit if a command fail, and if a variable is used unset.
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trap ynh_exit_properly EXIT # Capturing exit signals on shell script
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}
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# Define and install dependencies with a equivs control file
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# This helper can/should only be called once per app
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#
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# usage: ynh_install_app_dependencies dep [dep [...]]
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# | arg: dep - the package name to install in dependence
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ynh_install_app_dependencies () {
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dependencies=$@
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manifest_path="../manifest.json"
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if [ ! -e "$manifest_path" ]; then
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manifest_path="../settings/manifest.json" # Into the restore script, the manifest is not at the same place
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fi
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version=$(sudo grep '\"version\": ' "$manifest_path" | cut -d '"' -f 4) # Retrieve the version number in the manifest file.
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dep_app=${app//_/-} # Replace all '_' by '-'
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if ynh_package_is_installed "${dep_app}-ynh-deps"; then
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echo "A package named ${dep_app}-ynh-deps is already installed" >&2
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else
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cat > ./${dep_app}-ynh-deps.control << EOF # Make a control file for equivs-build
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Section: misc
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Priority: optional
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Package: ${dep_app}-ynh-deps
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Version: ${version}
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Depends: ${dependencies// /, }
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Architecture: all
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Description: Fake package for ${app} (YunoHost app) dependencies
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This meta-package is only responsible of installing its dependencies.
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EOF
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ynh_package_install_from_equivs ./${dep_app}-ynh-deps.control \
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|| ynh_die "Unable to install dependencies" # Install the fake package and its dependencies
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ynh_app_setting_set $app apt_dependencies $dependencies
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fi
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}
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# Remove fake package and its dependencies
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#
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# Dependencies will removed only if no other package need them.
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#
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# usage: ynh_remove_app_dependencies
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ynh_remove_app_dependencies () {
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dep_app=${app//_/-} # Replace all '_' by '-'
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ynh_package_autoremove ${dep_app}-ynh-deps # Remove the fake package and its dependencies if they not still used.
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}
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# Use logrotate to manage the logfile
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#
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# usage: ynh_use_logrotate [logfile]
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# | arg: logfile - absolute path of logfile
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#
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# If no argument provided, a standard directory will be use. /var/log/${app}
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# You can provide a path with the directory only or with the logfile.
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# /parentdir/logdir/
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# /parentdir/logdir/logfile.log
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#
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# It's possible to use this helper several times, each config will added to same logrotate config file.
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ynh_use_logrotate () {
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if [ "$#" -gt 0 ]; then
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if [ "$(echo ${1##*.})" == "log" ]; then # Keep only the extension to check if it's a logfile
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logfile=$1 # In this case, focus logrotate on the logfile
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else
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logfile=$1/.log # Else, uses the directory and all logfile into it.
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fi
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else
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logfile="/var/log/${app}/.log" # Without argument, use a defaut directory in /var/log
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fi
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cat > ./${app}-logrotate << EOF # Build a config file for logrotate
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$logfile {
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# Rotate if the logfile exceeds 100Mo
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size 100M
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# Keep 12 old log maximum
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rotate 12
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# Compress the logs with gzip
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compress
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# Compress the log at the next cycle. So keep always 2 non compressed logs
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delaycompress
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# Copy and truncate the log to allow to continue write on it. Instead of move the log.
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copytruncate
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# Do not do an error if the log is missing
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missingok
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# Not rotate if the log is empty
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notifempty
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# Keep old logs in the same dir
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noolddir
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}
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EOF
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sudo mkdir -p $(dirname "$logfile") # Create the log directory, if not exist
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cat ${app}-logrotate | sudo tee -a /etc/logrotate.d/$app > /dev/null # Append this config to the others for this app. If a config file already exist
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}
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# Remove the app's logrotate config.
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#
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# usage: ynh_remove_logrotate
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ynh_remove_logrotate () {
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if [ -e "/etc/logrotate.d/$app" ]; then
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sudo rm "/etc/logrotate.d/$app"
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fi
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}
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# Find a free port and return it
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#
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# example: port=$(ynh_find_port 8080)
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#
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# usage: ynh_find_port begin_port
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# | arg: begin_port - port to start to search
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ynh_find_port () {
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port=$1
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test -n "$port" || ynh_die "The argument of ynh_find_port must be a valid port."
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while netcat -z 127.0.0.1 $port # Check if the port is free
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do
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port=$((port+1)) # Else, pass to next port
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done
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echo $port
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}
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# Create a system user
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#
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# usage: ynh_system_user_create user_name [home_dir]
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# | arg: user_name - Name of the system user that will be create
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# | arg: home_dir - Path of the home dir for the user. Usually the final path of the app. If this argument is omitted, the user will be created without home
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ynh_system_user_create () {
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if ! ynh_system_user_exists "$1" # Check if the user exists on the system
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then # If the user doesn't exist
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if [ $# -ge 2 ]; then # If a home dir is mentioned
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user_home_dir="-d $2"
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else
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user_home_dir="--no-create-home"
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fi
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sudo useradd $user_home_dir --system --user-group $1 --shell /usr/sbin/nologin || ynh_die "Unable to create $1 system account"
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fi
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}
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# Delete a system user
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#
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# usage: ynh_system_user_delete user_name
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# | arg: user_name - Name of the system user that will be create
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ynh_system_user_delete () {
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if ynh_system_user_exists "$1" # Check if the user exists on the system
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then
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echo "Remove the user $1" >&2
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sudo userdel $1
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else
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echo "The user $1 was not found" >&2
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fi
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}
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# Curl abstraction to help with POST requests to local pages (such as installation forms)
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#
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# $domain and $path_url should be defined externally (and correspond to the domain.tld and the /path (of the app?))
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#
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# example: ynh_local_curl "/install.php?installButton" "foo=$var1" "bar=$var2"
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#
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# usage: ynh_local_curl "page_uri" "key1=value1" "key2=value2" ...
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# | arg: page_uri - Path (relative to $path_url) of the page where POST data will be sent
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# | arg: key1=value1 - (Optionnal) POST key and corresponding value
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# | arg: key2=value2 - (Optionnal) Another POST key and corresponding value
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# | arg: ... - (Optionnal) More POST keys and values
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ynh_local_curl () {
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# Define url of page to curl
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full_page_url=https://localhost$path_url$1
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# Concatenate all other arguments with '&' to prepare POST data
|
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POST_data=""
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for arg in "${@:2}"
|
||||
do
|
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POST_data="${POST_data}${arg}&"
|
||||
done
|
||||
if [ -n "$POST_data" ]
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||||
then
|
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# Add --data arg and remove the last character, which is an unecessary '&'
|
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POST_data="--data \"${POST_data::-1}\""
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fi
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# Curl the URL
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curl --silent --show-error -kL -H "Host: $domain" --resolve $domain:443:127.0.0.1 $POST_data "$full_page_url"
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}
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# Substitute/replace a string by another in a file
|
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#
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# usage: ynh_replace_string match_string replace_string target_file
|
||||
# | arg: match_string - String to be searched and replaced in the file
|
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# | arg: replace_string - String that will replace matches
|
||||
# | arg: target_file - File in which the string will be replaced.
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ynh_replace_string () {
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||||
delimit=@
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||||
match_string=${1//${delimit}/"\\${delimit}"} # Escape the delimiter if it's in the string.
|
||||
replace_string=${2//${delimit}/"\\${delimit}"}
|
||||
workfile=$3
|
||||
|
||||
sudo sed --in-place "s${delimit}${match_string}${delimit}${replace_string}${delimit}g" "$workfile"
|
||||
}
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||||
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||||
# Remove a file or a directory securely
|
||||
#
|
||||
# usage: ynh_secure_remove path_to_remove
|
||||
# | arg: path_to_remove - File or directory to remove
|
||||
ynh_secure_remove () {
|
||||
path_to_remove=$1
|
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forbidden_path=" \
|
||||
/var/www \
|
||||
/home/yunohost.app"
|
||||
|
||||
if [[ "$forbidden_path" =~ "$path_to_remove" \
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||||
# Match all paths or subpaths in $forbidden_path
|
||||
|| "$path_to_remove" =~ ^/[[:alnum:]]+$ \
|
||||
# Match all first level paths from / (Like /var, /root, etc...)
|
||||
|| "${path_to_remove:${#path_to_remove}-1}" = "/" ]]
|
||||
# Match if the path finishes by /. Because it seems there is an empty variable
|
||||
then
|
||||
echo "Avoid deleting $path_to_remove." >&2
|
||||
else
|
||||
if [ -e "$path_to_remove" ]
|
||||
then
|
||||
sudo rm -R "$path_to_remove"
|
||||
else
|
||||
echo "$path_to_remove wasn't deleted because it doesn't exist." >&2
|
||||
fi
|
||||
fi
|
||||
}
|
||||
|
||||
# Download, check integrity, uncompress and patch the source from app.src
|
||||
#
|
||||
# The file conf/app.src need to contains:
|
||||
#
|
||||
# SOURCE_URL=Address to download the app archive
|
||||
# SOURCE_SUM=Control sum
|
||||
# # (Optional) Programm to check the integrity (sha256sum, md5sum$YNH_EXECUTION_DIR/...)
|
||||
# # default: sha256
|
||||
# SOURCE_SUM_PRG=sha256
|
||||
# # (Optional) Archive format
|
||||
# # default: tar.gz
|
||||
# SOURCE_FORMAT=tar.gz
|
||||
# # (Optional) Put false if source are directly in the archive root
|
||||
# # default: true
|
||||
# SOURCE_IN_SUBDIR=false
|
||||
# # (Optionnal) Name of the local archive (offline setup support)
|
||||
# # default: ${src_id}.${src_format}
|
||||
# SOURCE_FILENAME=example.tar.gz
|
||||
#
|
||||
# Details:
|
||||
# This helper download sources from SOURCE_URL if there is no local source
|
||||
# archive in /opt/yunohost-apps-src/APP_ID/SOURCE_FILENAME
|
||||
#
|
||||
# Next, it check the integrity with "SOURCE_SUM_PRG -c --status" command.
|
||||
#
|
||||
# If it's ok, the source archive will be uncompress in $dest_dir. If the
|
||||
# SOURCE_IN_SUBDIR is true, the first level directory of the archive will be
|
||||
# removed.
|
||||
#
|
||||
# Finally, patches named sources/patches/${src_id}-*.patch and extra files in
|
||||
# sources/extra_files/$src_id will be applyed to dest_dir
|
||||
#
|
||||
#
|
||||
# usage: ynh_setup_source dest_dir [source_id]
|
||||
# | arg: dest_dir - Directory where to setup sources
|
||||
# | arg: source_id - Name of the app, if the package contains more than one app
|
||||
ynh_setup_source () {
|
||||
local dest_dir=$1
|
||||
local src_id=${2:-app} # If the argument is not given, source_id equal "app"
|
||||
|
||||
# Load value from configuration file (see above for a small doc about this file
|
||||
# format)
|
||||
local src_url=$(grep 'SOURCE_URL=' "../conf/${src_id}.src" | cut -d= -f2-)
|
||||
local src_sum=$(grep 'SOURCE_SUM=' "../conf/${src_id}.src" | cut -d= -f2-)
|
||||
local src_sumprg=$(grep 'SOURCE_SUM_PRG=' "../conf/${src_id}.src" | cut -d= -f2-)
|
||||
local src_format=$(grep 'SOURCE_FORMAT=' "../conf/${src_id}.src" | cut -d= -f2-)
|
||||
local src_in_subdir=$(grep 'SOURCE_IN_SUBDIR=' "../conf/${src_id}.src" | cut -d= -f2-)
|
||||
local src_filename=$(grep 'SOURCE_FILENAME=' "../conf/${src_id}.src" | cut -d= -f2-)
|
||||
|
||||
# Default value
|
||||
src_sumprg=${src_sumprg:-sha256sum}
|
||||
src_in_subdir=${src_in_subdir:-true}
|
||||
src_format=${src_format:-tar.gz}
|
||||
src_format=$(echo "$src_format" | tr '[:upper:]' '[:lower:]')
|
||||
if [ "$src_filename" = "" ] ; then
|
||||
src_filename="${src_id}.${src_format}"
|
||||
fi
|
||||
local local_src="/opt/yunohost-apps-src/${YNH_APP_ID}/${src_filename}"
|
||||
|
||||
if test -e "$local_src"
|
||||
then # Use the local source file if it is present
|
||||
cp $local_src $src_filename
|
||||
else # If not, download the source
|
||||
wget -nv -O $src_filename $src_url
|
||||
fi
|
||||
|
||||
# Check the control sum
|
||||
echo "${src_sum} ${src_filename}" | ${src_sumprg} -c --status \
|
||||
|| ynh_die "Corrupt source"
|
||||
|
||||
# Extract source into the app dir
|
||||
sudo mkdir -p "$dest_dir"
|
||||
if [ "$src_format" = "zip" ]
|
||||
then
|
||||
# Zip format
|
||||
# Using of a temp directory, because unzip doesn't manage --strip-components
|
||||
if $src_in_subdir ; then
|
||||
local tmp_dir=$(mktemp -d)
|
||||
sudo unzip -quo $src_filename -d "$tmp_dir"
|
||||
sudo cp -a $tmp_dir/*/. "$dest_dir"
|
||||
ynh_secure_remove "$tmp_dir"
|
||||
else
|
||||
sudo unzip -quo $src_filename -d "$dest_dir"
|
||||
fi
|
||||
else
|
||||
local strip=""
|
||||
if $src_in_subdir ; then
|
||||
strip="--strip-components 1"
|
||||
fi
|
||||
if [[ "$src_format" =~ ^tar.gz|tar.bz2|tar.xz$ ]] ; then
|
||||
sudo tar -xf $src_filename -C "$dest_dir" $strip
|
||||
else
|
||||
ynh_die "Archive format unrecognized."
|
||||
fi
|
||||
fi
|
||||
|
||||
# Apply patches
|
||||
if (( $(find ../sources/patches/ -type f -name "${src_id}-*.patch" 2> /dev/null | wc -l) > "0" )); then
|
||||
local old_dir=$(pwd)
|
||||
(cd "$dest_dir" \
|
||||
&& for p in ../sources/patches/${src_id}-*.patch; do \
|
||||
sudo patch -p1 < $p; done) \
|
||||
|| ynh_die "Unable to apply patches"
|
||||
cd $old_dir
|
||||
fi
|
||||
|
||||
# Add supplementary files
|
||||
if test -e "../sources/extra_files/${src_id}"; then
|
||||
sudo cp -a ../sources/extra_files/$src_id/. "$dest_dir"
|
||||
fi
|
||||
}
|
||||
|
||||
# Check availability of a web path
|
||||
#
|
||||
# example: ynh_webpath_available some.domain.tld /coffee
|
||||
#
|
||||
# usage: ynh_webpath_available domain path
|
||||
# | arg: domain - the domain/host of the url
|
||||
# | arg: path - the web path to check the availability of
|
||||
ynh_webpath_available () {
|
||||
local domain=$1
|
||||
local path=$2
|
||||
sudo yunohost domain url-available $domain $path
|
||||
}
|
||||
|
||||
# Register/book a web path for an app
|
||||
#
|
||||
# example: ynh_webpath_register wordpress some.domain.tld /coffee
|
||||
#
|
||||
# usage: ynh_webpath_register app domain path
|
||||
# | arg: app - the app for which the domain should be registered
|
||||
# | arg: domain - the domain/host of the web path
|
||||
# | arg: path - the web path to be registered
|
||||
ynh_webpath_register () {
|
||||
local app=$1
|
||||
local domain=$2
|
||||
local path=$3
|
||||
sudo yunohost app register-url $app $domain $path
|
||||
}
|
||||
|
||||
# Calculate and store a file checksum into the app settings
|
||||
#
|
||||
# $app should be defined when calling this helper
|
||||
#
|
||||
# usage: ynh_store_file_checksum file
|
||||
# | arg: file - The file on which the checksum will performed, then stored.
|
||||
ynh_store_file_checksum () {
|
||||
local checksum_setting_name=checksum_${1//[\/ ]/_} # Replace all '/' and ' ' by '_'
|
||||
ynh_app_setting_set $app $checksum_setting_name $(sudo md5sum "$1" | cut -d' ' -f1)
|
||||
}
|
||||
|
||||
# Verify the checksum and backup the file if it's different
|
||||
# This helper is primarily meant to allow to easily backup personalised/manually
|
||||
# modified config files.
|
||||
#
|
||||
# $app should be defined when calling this helper
|
||||
#
|
||||
# usage: ynh_backup_if_checksum_is_different file
|
||||
# | arg: file - The file on which the checksum test will be perfomed.
|
||||
#
|
||||
# | ret: Return the name a the backup file, or nothing
|
||||
ynh_backup_if_checksum_is_different () {
|
||||
local file=$1
|
||||
local checksum_setting_name=checksum_${file//[\/ ]/_} # Replace all '/' and ' ' by '_'
|
||||
local checksum_value=$(ynh_app_setting_get $app $checksum_setting_name)
|
||||
if [ -n "$checksum_value" ]
|
||||
then # Proceed only if a value was stored into the app settings
|
||||
if ! echo "$checksum_value $file" | sudo md5sum -c --status
|
||||
then # If the checksum is now different
|
||||
backup_file="/home/yunohost.conf/backup/$file.backup.$(date '+%Y%m%d.%H%M%S')"
|
||||
sudo mkdir -p "$(dirname "$backup_file")"
|
||||
sudo cp -a "$file" "$backup_file" # Backup the current file
|
||||
echo "File $file has been manually modified since the installation or last upgrade. So it has been duplicated in $backup_file" >&2
|
||||
echo "$backup_file" # Return the name of the backup file
|
||||
fi
|
||||
fi
|
||||
}
|
||||
|
||||
#####################################
|
||||
|
||||
# This is not an official helper, just an abstract helper to prepare to the new one.
|
||||
ynh_restore_file () {
|
||||
sudo cp -a "${backup_dir}$1" "$1"
|
||||
}
|
||||
|
||||
# =============================================================================
|
||||
# YUNOHOST 2.6 FORTHCOMING HELPERS
|
||||
# (will be part of YunoHost 2.6, so won't be necessary any more after
|
||||
# YunoHost 2.6 gets widespread)
|
||||
# =============================================================================
|
||||
|
||||
# Create a dedicated nginx config
|
||||
|
|
|
|||
Loading…
Reference in a new issue